Home / 1,368,861.52-1,889,033.28-765,249.52

Finding the Fourth Proportional to 1,368,861.52, 1,889,033.28 and 765,249.52

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Solution

The fourth proportional to 1,368,861.52, 1,889,033.28 and 765,249.52 is: 1,056,046.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,861.52 : 1,889,033.28 = 765,249.52 : x
  2. Step 2: Convert to fraction form
    1,368,861.52/1,889,033.28 = 765,249.52/x
  3. Step 3: Cross multiply
    1,368,861.52x = 1,889,033.28 × 765,249.52
  4. Step 4: Simplify right side
    1,368,861.52x = 1,445,581,810,784.03
  5. Step 5: Solve for x
    x = 1,445,581,810,784.03/1,368,861.52
  6. Step 6: Final answer
    x = 1,056,046.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.